PORSCHE的7檔並沒有像PDK 是雙離合器. 它還是單離合. 跟其他手排並無兩樣!!原廠說明上提到" The design of this manual gearbox is based in principle on that of Porsche Doppelkupplung (PDK), Gear 1 to 6 have a sports ratio and top speed is reach in 6th gear.The additional 7th gear, however, has a long ratio, which reduces torque and helps to reduce fuel consumption. 7速手排跟7速PDK兩者只有檔位的運用上理論相同,6檔是拉極速用的7檔則是省油結能用的,設計結構風馬牛不相干!!!